King Henry had inherited the palace and park at Greenwich from his uncle, Humphrey, Duke of Gloucester five years previously and it was a particular favourite of his, due to the celebrated library his cultured uncle had amassed there. It was Queen Marguerite who had renamed it Placentia for its green and rural setting – though it lay only a few miles downstream. The contrast with Westminster’s tightly packed streets and buildings was magical; an oasis, and like the outgoing tidal waters of the Thames, the queen yearned to escape from the confines of urban life upriver. Besides, hunting was one of the few pastimes Henry and Marguerite had in common and there were great chases to be had in the vast enclosure of Greenwich Park. As the oarsmen made swift work of the long meander around the north bank mudflats, I sniffed the salty tang in the air and prayed that the crisp, calm weather would persist and give us some magnificent Christmas sport.

It was King Henry’s decree that on the Eve of Christ’s birth his court should be unsullied by too much eating, drinking and merrymaking, such as had been common during previous reigns and still persisted in many noble houses. So after a long celebration Mass during the morning, there was a decent meal of three courses accompanied by a limited quantity of wine and small ale, consumed while choristers sang beautiful but plangent psalms, and prayers and Gospel readings were heard. Afterwards a troupe of mummers performed a Nativity play dressed in gorgeous traditional costumes kept in the royal Wardrobe for use on this one night of the year. It took place in candlelight as darkness fell outside and was an unexpectedly moving experience. When the shepherds fell to their knees in awe at the choir of angels, enthralled by their soaring voices and twinkling jewelled wings I felt a surge of nostalgia, recalling nights spent under the stars with Jane Hywel and her brothers while embers from the camp fire rose into the dark sky and my father played his harp and sang stories of ancient Welsh legend.

It was at the conclusion of this play, as the applause died down and a hum of conversation started, that King Henry chose to have his big announcement made to the court. He did not do it himself but, appropriately enough, through the services of his Richmond Herald, who began by sounding his trumpet for silence.